SMC Networks LECSN-T Series - 11.2.3 Selection of regenerative option

11. OPTIONS AND PERIPHERAL EQUIPMENT
11 - 12
11.2.3 Selection of regenerative option
POINT
For the wire sizes used for wiring, refer to section 11.5.
The regenerative option generates heat of 100 ˚C higher than the ambient temperature. Fully consider
heat dissipation, installation position, wires used, etc. before installing the option. For wiring, use flame-
resistant wires or make the wires flame-resistant and keep them away from the regenerative option.
Always use twisted cables of max. 5 m length for connection with the driver.
(1) LECSN2-T□
Always remove the wiring from across P+ to D and fit the regenerative option across P+ to C. G3
and G4 are thermal sensor's terminals. Between G3 and G4 is opened when the regenerative option
overheats abnormally.
D
P+
C
G4
G3
C
P
Regenerative option
5 m or less
Servo amplifier
Always remove the lead from across P+ to D.
(Note 3)
Cooling fan
(Note 1, 2)
Note 1.
Make up a sequence which will switch off the magnetic contactor when abnormal
heating occurs.
G3-G4 contact specifications
Maximum voltage: 120 V AC/DC
Maximum current: 0.5 A/4.8 V DC
Maximum capacity: 2.4 VA
Driver
(Note 1)